/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.model.item;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.List;
import java.util.logging.Level;

import javolution.util.FastList;
import net.sf.l2j.Config;
import net.sf.l2j.database.L2DatabaseFactory;
import net.sf.l2j.gameserver.model.L2ItemInstance;
import net.sf.l2j.gameserver.model.L2ItemInstance.ItemLocation;
import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.TradeList;
import net.sf.l2j.gameserver.model.TradeList.TradeItem;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.serverpackets.InventoryUpdate;
import net.sf.l2j.gameserver.network.serverpackets.ItemList;
import net.sf.l2j.gameserver.network.serverpackets.StatusUpdate;
import net.sf.l2j.gameserver.templates.L2EtcItemType;

public class PcInventory extends Inventory {
	public static final int ADENA_ID = 57;
	public static final int ANCIENT_ADENA_ID = 5575;
	private final L2PcInstance _owner;
	private L2ItemInstance _adena;
	private L2ItemInstance _ancientAdena;

	public PcInventory(L2PcInstance owner) {
		_owner = owner;
	}

	@Override
	public L2PcInstance getOwner() {
		return _owner;
	}

	@Override
	protected ItemLocation getBaseLocation() {
		return ItemLocation.INVENTORY;
	}

	@Override
	protected ItemLocation getEquipLocation() {
		return ItemLocation.PAPERDOLL;
	}

	public L2ItemInstance getAdenaInstance() {
		return _adena;
	}

	@Override
	public int getAdena() {
		return _adena != null ? _adena.getCount() : 0;
	}

	public L2ItemInstance getAncientAdenaInstance() {
		return _ancientAdena;
	}

	public int getAncientAdena() {
		return _ancientAdena != null ? _ancientAdena.getCount() : 0;
	}

	/**
	 * Returns the list of items in inventory available for transaction
	 * 
	 * @return L2ItemInstance : items in inventory
	 */
	public L2ItemInstance[] getUniqueItems(boolean allowAdena,
			boolean allowAncientAdena, boolean Adventurer) {
		return getUniqueItems(allowAdena, allowAncientAdena, Adventurer, true);
	}

	public L2ItemInstance[] getUniqueItems(boolean allowAdena,
			boolean allowAncientAdena, boolean Adventurer, boolean onlyAvailable) {
		List<L2ItemInstance> list = new FastList<L2ItemInstance>();
		for (L2ItemInstance item : _items) {
			if (!allowAdena && item.getItemId() == 57)
				continue;
			if (!allowAncientAdena && item.getItemId() == 5575)
				continue;
			boolean isDuplicate = false;
			for (L2ItemInstance litem : list)
				if (litem.getItemId() == item.getItemId()) {
					isDuplicate = true;
					break;
				}
			if (!isDuplicate
					&& (!onlyAvailable || item.getItem().isSellable()
							&& item.isAvailable(getOwner(), false, Adventurer)))
				list.add(item);
		}
		return list.toArray(new L2ItemInstance[list.size()]);
	}

	/**
	 * Returns the list of items in inventory available for transaction Allows
	 * an item to appear twice if and only if there is a difference in
	 * enchantment level.
	 * 
	 * @return L2ItemInstance : items in inventory
	 */
	public L2ItemInstance[] getUniqueItemsByEnchantLevel(boolean allowAdena,
			boolean allowAncientAdena) {
		return getUniqueItemsByEnchantLevel(allowAdena, allowAncientAdena, true);
	}

	public L2ItemInstance[] getUniqueItemsByEnchantLevel(boolean allowAdena,
			boolean allowAncientAdena, boolean onlyAvailable) {
		List<L2ItemInstance> list = new FastList<L2ItemInstance>();
		for (L2ItemInstance item : _items) {
			if (!allowAdena && item.getItemId() == 57)
				continue;
			if (!allowAncientAdena && item.getItemId() == 5575)
				continue;
			boolean isDuplicate = false;
			for (L2ItemInstance litem : list)
				if (litem.getItemId() == item.getItemId()
						&& litem.getEnchantLevel() == item.getEnchantLevel()) {
					isDuplicate = true;
					break;
				}
			if (!isDuplicate
					&& (!onlyAvailable || item.getItem().isSellable()
							&& item.isAvailable(getOwner(), false, false)))
				list.add(item);
		}
		return list.toArray(new L2ItemInstance[list.size()]);
	}

	/**
	 * Returns the list of all items in inventory that have a given item id.
	 * 
	 * @return L2ItemInstance[] : matching items from inventory
	 */
	public L2ItemInstance[] getAllItemsByItemId(int itemId) {
		List<L2ItemInstance> list = new FastList<L2ItemInstance>();
		for (L2ItemInstance item : _items)
			if (item.getItemId() == itemId)
				list.add(item);
		return list.toArray(new L2ItemInstance[list.size()]);
	}

	/**
	 * Returns the list of all items in inventory that have a given item id AND
	 * a given enchantment level.
	 * 
	 * @return L2ItemInstance[] : matching items from inventory
	 */
	public L2ItemInstance[] getAllItemsByItemId(int itemId, int enchantment) {
		List<L2ItemInstance> list = new FastList<L2ItemInstance>();
		for (L2ItemInstance item : _items)
			if (item.getItemId() == itemId
					&& item.getEnchantLevel() == enchantment)
				list.add(item);
		return list.toArray(new L2ItemInstance[list.size()]);
	}

	/**
	 * Returns the list of items in inventory available for transaction
	 * 
	 * @return L2ItemInstance : items in inventory
	 */
	public L2ItemInstance[] getAvailableItems(boolean allowAdena) {
		List<L2ItemInstance> list = new FastList<L2ItemInstance>();
		for (L2ItemInstance item : _items)
			if (item != null && item.isAvailable(getOwner(), allowAdena, false))
				list.add(item);
		return list.toArray(new L2ItemInstance[list.size()]);
	}

	/**
	 * Get all augmented items
	 * 
	 * @return
	 */
	public L2ItemInstance[] getAugmentedItems() {
		List<L2ItemInstance> list = new FastList<L2ItemInstance>();
		for (L2ItemInstance item : _items)
			if (item != null && item.isAugmented())
				list.add(item);
		return list.toArray(new L2ItemInstance[list.size()]);
	}

	/**
	 * Returns the list of items in inventory available for transaction adjusetd
	 * by tradeList
	 * 
	 * @return L2ItemInstance : items in inventory
	 */
	public TradeList.TradeItem[] getAvailableItems(TradeList tradeList) {
		List<TradeList.TradeItem> list = new FastList<TradeList.TradeItem>();
		for (L2ItemInstance item : _items)
			if (item.isAvailable(getOwner(), false, false)) {
				TradeList.TradeItem adjItem = tradeList
						.adjustAvailableItem(item);
				if (adjItem != null)
					list.add(adjItem);
			}
		return list.toArray(new TradeList.TradeItem[list.size()]);
	}

	/**
	 * Adjust TradeItem according his status in inventory
	 * 
	 * @param item
	 *            : L2ItemInstance to be adjusten
	 * @return TradeItem representing adjusted item
	 */
	public void adjustAvailableItem(TradeItem item) {
		for (L2ItemInstance adjItem : _items)
			if (adjItem.getItemId() == item.getItem().getItemId()) {
				item.setObjectId(adjItem.getObjectId());
				item.setEnchant(adjItem.getEnchantLevel());
				if (adjItem.getCount() < item.getCount())
					item.setCount(adjItem.getCount());
				return;
			}
		item.setCount(0);
	}

	/**
	 * Adds adena to PCInventory
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param count
	 *            : int Quantity of adena to be added
	 * @param actor
	 *            : L2PcInstance Player requesting the item add
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 */
	public void addAdena(String process, int count, L2PcInstance actor,
			L2Object reference) {
		if (count > 0)
			addItem(process, ADENA_ID, count, actor, reference);
	}

	/**
	 * Removes adena to PCInventory
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param count
	 *            : int Quantity of adena to be removed
	 * @param actor
	 *            : L2PcInstance Player requesting the item add
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 */
	public void reduceAdena(String process, int count, L2PcInstance actor,
			L2Object reference) {
		if (count > 0)
			destroyItemByItemId(process, ADENA_ID, count, actor, reference);
	}

	/**
	 * Adds specified amount of ancient adena to player inventory.
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param count
	 *            : int Quantity of adena to be added
	 * @param actor
	 *            : L2PcInstance Player requesting the item add
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 */
	public void addAncientAdena(String process, int count, L2PcInstance actor,
			L2Object reference) {
		if (count > 0)
			addItem(process, ANCIENT_ADENA_ID, count, actor, reference);
	}

	/**
	 * Removes specified amount of ancient adena from player inventory.
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param count
	 *            : int Quantity of adena to be removed
	 * @param actor
	 *            : L2PcInstance Player requesting the item add
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 */
	public void reduceAncientAdena(String process, int count,
			L2PcInstance actor, L2Object reference) {
		if (count > 0)
			destroyItemByItemId(process, ANCIENT_ADENA_ID, count, actor,
					reference);
	}

	/**
	 * Adds item in inventory and checks _adena and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param item
	 *            : L2ItemInstance to be added
	 * @param actor
	 *            : L2PcInstance Player requesting the item add
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the new item or the updated item
	 *         in inventory
	 */
	@Override
	public L2ItemInstance addItem(String process, L2ItemInstance item,
			L2PcInstance actor, L2Object reference) {
		item = super.addItem(process, item, actor, reference);
		if (item != null && item.getItemId() == ADENA_ID
				&& !item.equals(_adena))
			_adena = item;
		if (item != null && item.getItemId() == ANCIENT_ADENA_ID
				&& !item.equals(_ancientAdena))
			_ancientAdena = item;
		return item;
	}

	/**
	 * Adds item in inventory and checks _adena and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param itemId
	 *            : int Item Identifier of the item to be added
	 * @param count
	 *            : int Quantity of items to be added
	 * @param actor
	 *            : L2PcInstance Player requesting the item creation
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the new item or the updated item
	 *         in inventory
	 */
	@Override
	public L2ItemInstance addItem(String process, int itemId, int count,
			L2PcInstance actor, L2Object reference) {
		L2ItemInstance item = super.addItem(process, itemId, count, actor,
				reference);
		if (item != null && item.getItemId() == ADENA_ID
				&& !item.equals(_adena))
			_adena = item;
		if (item != null && item.getItemId() == ANCIENT_ADENA_ID
				&& !item.equals(_ancientAdena))
			_ancientAdena = item;
		return item;
	}

	/**
	 * Transfers item to another inventory and checks _adena and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param itemId
	 *            : int Item Identifier of the item to be transfered
	 * @param count
	 *            : int Quantity of items to be transfered
	 * @param actor
	 *            : L2PcInstance Player requesting the item transfer
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the new item or the updated item
	 *         in inventory
	 */
	@Override
	public L2ItemInstance transferItem(String process, int objectId, int count,
			ItemContainer target, L2PcInstance actor, L2Object reference) {
		L2ItemInstance item = super.transferItem(process, objectId, count,
				target, actor, reference);
		if (_adena != null
				&& (_adena.getCount() <= 0 || _adena.getOwnerId() != getOwnerId()))
			_adena = null;
		if (_ancientAdena != null
				&& (_ancientAdena.getCount() <= 0 || _ancientAdena.getOwnerId() != getOwnerId()))
			_ancientAdena = null;
		return item;
	}

	/**
	 * Destroy item from inventory and checks _adena and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param item
	 *            : L2ItemInstance to be destroyed
	 * @param actor
	 *            : L2PcInstance Player requesting the item destroy
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the destroyed item or the updated
	 *         item in inventory
	 */
	@Override
	public L2ItemInstance destroyItem(String process, L2ItemInstance item,
			L2PcInstance actor, L2Object reference) {
		item = super.destroyItem(process, item, actor, reference);
		if (_adena != null && _adena.getCount() <= 0)
			_adena = null;
		if (_ancientAdena != null && _ancientAdena.getCount() <= 0)
			_ancientAdena = null;
		return item;
	}

	/**
	 * Destroys item from inventory and checks _adena and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param objectId
	 *            : int Item Instance identifier of the item to be destroyed
	 * @param count
	 *            : int Quantity of items to be destroyed
	 * @param actor
	 *            : L2PcInstance Player requesting the item destroy
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the destroyed item or the updated
	 *         item in inventory
	 */
	@Override
	public L2ItemInstance destroyItem(String process, int objectId, int count,
			L2PcInstance actor, L2Object reference) {
		L2ItemInstance item = super.destroyItem(process, objectId, count,
				actor, reference);
		if (_adena != null && _adena.getCount() <= 0)
			_adena = null;
		if (_ancientAdena != null && _ancientAdena.getCount() <= 0)
			_ancientAdena = null;
		return item;
	}

	/**
	 * Destroy item from inventory by using its <B>itemId</B> and checks _adena
	 * and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param itemId
	 *            : int Item identifier of the item to be destroyed
	 * @param count
	 *            : int Quantity of items to be destroyed
	 * @param actor
	 *            : L2PcInstance Player requesting the item destroy
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the destroyed item or the updated
	 *         item in inventory
	 */
	@Override
	public L2ItemInstance destroyItemByItemId(String process, int itemId,
			int count, L2PcInstance actor, L2Object reference) {
		L2ItemInstance item = super.destroyItemByItemId(process, itemId, count,
				actor, reference);
		if (_adena != null && _adena.getCount() <= 0)
			_adena = null;
		if (_ancientAdena != null && _ancientAdena.getCount() <= 0)
			_ancientAdena = null;
		return item;
	}

	/**
	 * Drop item from inventory and checks _adena and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param item
	 *            : L2ItemInstance to be dropped
	 * @param actor
	 *            : L2PcInstance Player requesting the item drop
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the destroyed item or the updated
	 *         item in inventory
	 */
	@Override
	public L2ItemInstance dropItem(String process, L2ItemInstance item,
			L2PcInstance actor, L2Object reference) {
		item = super.dropItem(process, item, actor, reference);
		if (_adena != null
				&& (_adena.getCount() <= 0 || _adena.getOwnerId() != getOwnerId()))
			_adena = null;
		if (_ancientAdena != null
				&& (_ancientAdena.getCount() <= 0 || _ancientAdena.getOwnerId() != getOwnerId()))
			_ancientAdena = null;
		return item;
	}

	/**
	 * Drop item from inventory by using its <B>objectID</B> and checks _adena
	 * and _ancientAdena
	 * 
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param objectId
	 *            : int Item Instance identifier of the item to be dropped
	 * @param count
	 *            : int Quantity of items to be dropped
	 * @param actor
	 *            : L2PcInstance Player requesting the item drop
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling
	 *            item or previous item in transformation
	 * @return L2ItemInstance corresponding to the destroyed item or the updated
	 *         item in inventory
	 */
	@Override
	public L2ItemInstance dropItem(String process, int objectId, int count,
			L2PcInstance actor, L2Object reference) {
		L2ItemInstance item = super.dropItem(process, objectId, count, actor,
				reference);
		if (_adena != null
				&& (_adena.getCount() <= 0 || _adena.getOwnerId() != getOwnerId()))
			_adena = null;
		if (_ancientAdena != null
				&& (_ancientAdena.getCount() <= 0 || _ancientAdena.getOwnerId() != getOwnerId()))
			_ancientAdena = null;
		return item;
	}

	/**
	 * <b>Overloaded</b>, when removes item from inventory, remove also owner
	 * shortcuts.
	 * 
	 * @param item
	 *            : L2ItemInstance to be removed from inventory
	 */
	@Override
	protected void removeItem(L2ItemInstance item) {
		// Removes any reference to the item from Shortcut bar
		getOwner().removeItemFromShortCut(item.getObjectId());
		// Removes active Enchant Scroll
		if (item.equals(getOwner().getActiveEnchantItem()))
			getOwner().setActiveEnchantItem(null);
		if (item.getItemId() == ADENA_ID)
			_adena = null;
		else if (item.getItemId() == ANCIENT_ADENA_ID)
			_ancientAdena = null;
		super.removeItem(item);
	}

	/**
	 * Refresh the weight of equipment loaded
	 */
	@Override
	public void refreshWeight() {
		super.refreshWeight();
		getOwner().refreshOverloaded();
	}

	/**
	 * Get back items in inventory from database
	 */
	@Override
	public void restore() {
		super.restore();
		_adena = getItemByItemId(ADENA_ID);
		_ancientAdena = getItemByItemId(ANCIENT_ADENA_ID);
	}

	public static int[][] restoreVisibleInventory(int objectId) {
		int[][] paperdoll = new int[0x12][3];
		java.sql.Connection con = null;
		try {
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement2 = con
					.prepareStatement("SELECT object_id,item_id,loc_data,enchant_level FROM items WHERE owner_id=? AND loc='PAPERDOLL'");
			statement2.setInt(1, objectId);
			ResultSet invdata = statement2.executeQuery();
			while (invdata.next()) {
				int slot = invdata.getInt("loc_data");
				paperdoll[slot][0] = invdata.getInt("object_id");
				paperdoll[slot][1] = invdata.getInt("item_id");
				paperdoll[slot][2] = invdata.getInt("enchant_level");
			}
			invdata.close();
			statement2.close();
		} catch (Exception e) {
			_log.log(Level.WARNING, "could not restore inventory:", e);
		} finally {
			try {
				con.close();
			} catch (Exception e) {
				_log.warning("");
			}
		}
		return paperdoll;
	}

	public boolean validateCapacity(L2ItemInstance item) {
		int slots = 0;
		if (!(item.isStackable() && getItemByItemId(item.getItemId()) != null)
				&& item.getItemType() != L2EtcItemType.HERB)
			slots++;
		return validateCapacity(slots);
	}

	public boolean validateCapacity(List<L2ItemInstance> items) {
		int slots = 0;
		for (L2ItemInstance item : items)
			if (!(item.isStackable() && getItemByItemId(item.getItemId()) != null))
				slots++;
		return validateCapacity(slots);
	}

	public boolean validateCapacityByItemId(int ItemId) {
		int slots = 0;
		L2ItemInstance invItem = getItemByItemId(ItemId);
		if (!(invItem != null && invItem.isStackable()))
			slots++;
		return validateCapacity(slots);
	}

	@Override
	public boolean validateCapacity(int slots) {
		return _items.size() + slots <= _owner.GetInventoryLimit();
	}

	@Override
	public boolean validateWeight(int weight) {
		return _totalWeight + weight <= _owner.getMaxLoad();
	}

	/**
	 * @see Inventory#updateInventory()
	 */
	public void updateInventory(L2ItemInstance newItem) {
		if (newItem == null)
			return;
		L2PcInstance targetPlayer = getOwner();
		if (!Config.FORCE_INVENTORY_UPDATE) {
			InventoryUpdate playerIU = new InventoryUpdate();
			playerIU.addItem(newItem);
			targetPlayer.sendPacket(playerIU);
			playerIU = null;
		} else
			targetPlayer.sendPacket(new ItemList(targetPlayer, false));

		// Update current load as well
		if (newItem.getItem().getWeight() <= 0)
			return;
		StatusUpdate playerSU = new StatusUpdate(targetPlayer.getObjectId());
		playerSU.addAttribute(StatusUpdate.CUR_LOAD,
				targetPlayer.getCurrentLoad());
		targetPlayer.sendPacket(playerSU);
		playerSU = null;
	}
}
